Guide rail connecting structure of PPU manipulator

Abstract

The guide rail connecting structure of the PPU mechanical arm comprises a connecting block, a follow-up bearing, a connecting shaft and a cover plate, the connecting block is installed at one end of a guide rail, a bearing installation hole is formed in one end of the connecting block, the follow-up bearing is installed in the bearing installation hole, and the front end of the connecting shaft stretches into the center of the follow-up bearing; one end of the connecting block is provided with a bearing mounting hole, the rear end of the connecting block is connected with a cycloidal gear of the PPU manipulator, a cover plate is arranged in front of the connecting block, the cover plate covers a follow-up bearing, and the follow-up bearing can roll around a connecting shaft in the bearing mounting hole. The cover plate is mounted in front of the connecting block and covers the follow-up bearing to prevent the follow-up bearing from falling out, the follow-up bearing can roll around the connecting shaft in the bearing mounting hole, the follow-up bearing is used for replacing an oil-free bushing, the bearing has the advantages of being high in bearing capacity, resistant to abrasion, long in service life and the like, and the movement precision is improved.

Description

Technical Field

[0001] The utility model relates to the field of connectors, in particular to a guide rail connection structure of a PPU manipulator. Background Art

[0002] The PPU manipulator mainly uses a motor to drive the cam to move, and the cam drives the cycloid wheel to swing, and then the guide rail moves according to the preset trajectory to transport materials. The connection structure between the cycloid wheel and the guide rail of the existing PPU manipulator is realized by an oil-free bushing. The disadvantages of the oil-free bushing are low load-bearing capacity, poor wear resistance, and easy wear after long-term use, resulting in a short service life, and low precision. Utility Model Content

[0003] In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is how to optimize the connection structure between the guide rail and the cycloid wheel. The specific technical solution is as follows:

[0004] A guide rail connection structure of a PPU manipulator comprises a connection block, a follower bearing, a connection shaft and a cover plate, wherein the connection block is mounted at one end of the guide rail, a bearing mounting hole is provided at one end of the connection block, a follower bearing is mounted in the bearing mounting hole, and a front end of the connection shaft extends into the center of the follower bearing; and a rear end is connected to a cycloid wheel of the PPU manipulator, a cover plate is mounted in front of the connection block, the cover plate covers the follower bearing, and the follower bearing can roll around the connection shaft in the bearing mounting hole.

[0005] As a preferred solution of the utility model, the connecting block is composed of a front part and a rear part, the front part is provided with screw holes for fixing the mounting rail, and the mounting holes are arranged in the rear part.

[0006] As a preferred solution of the utility model, the front part and the rear part are staggered to form a avoiding groove for installing the cover plate.

[0007] As a preferred solution of the utility model, the inner wall of the avoidance groove is an arc-shaped groove, and the inner side of the cover plate is an arc edge matching the arc-shaped groove.

[0008] As a preferred solution of the utility model, a sensor sheet is provided on the outer side of the cover plate.

[0009] As a preferred solution of the utility model, a limiting bottom wall is provided at the bottom of the bearing mounting hole, and a through hole is provided at the center of the limiting bottom wall. The diameter of the through hole is smaller than the outer diameter of the follower bearing and larger than the outer diameter of the connecting shaft.

[0010] Beneficial effects: Compared with the prior art, the structural improvement of the utility model mainly lies in that a bearing mounting hole is provided at one end of the connecting block, a follower bearing is installed in the bearing mounting hole, a cover plate is installed in the front of the connecting block, the cover plate covers the follower bearing to prevent the follower bearing from falling out, the follower bearing can roll around the connecting shaft in the bearing mounting hole, and the follower bearing is used to replace the oil-free bushing, which has the advantages of strong load-bearing capacity, wear resistance, long service life, etc., and improves the movement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional diagram of the utility model;

[0012] Figure 2 It is an exploded view of the utility model;

[0013] Figure 3 It is a matching diagram of the utility model and the guide rail;

[0014] Figure 4 It is a stereoscopic diagram of the utility model when installed on a PPU manipulator. DETAILED DESCRIPTION

[0015] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings:

[0016] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the positions or elements referred to must have specific directions, be constructed and operated in specific directions. Therefore, they cannot be understood as limitations on the present invention.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0018] like Figures 1 to 4As shown, a guide rail connection structure of a PPU manipulator comprises a connection block 1, a follower bearing 2, a connection shaft 3 and a cover plate 4. The connection block 1 is mounted at one end of a guide rail 5. A bearing mounting hole 6 is provided at one end of the connection block 1. The follower bearing 2 is mounted in the bearing mounting hole 6. The front end of the connection shaft 3 extends into the center of the follower bearing 2. The rear end is connected to a cycloid wheel 7 of the PPU manipulator. A cover plate 4 is mounted in front of the connection block 1. The cover plate 4 covers the follower bearing 2. When the cycloid wheel 7 of the PPU manipulator swings, the cycloid wheel 7 drives the guide rail 5 to move through the connection shaft 3 and the follower bearing 2. The movement of the guide rail 5 is a common mode of the PPU manipulator. The follower bearing 2 can roll around the connection shaft 3 in the bearing mounting hole 6.

[0019] Specifically, the connecting block 1 consists of a front part 1a and a rear part 1b. The front part 1a is provided with a screw hole 8 for fixing the mounting guide rail 5, and the bearing mounting hole 6 is arranged in the rear part 1b. The front part 1a and the rear part 1b are staggered to form a avoidance groove 1c for installing the cover plate 4. This design is conducive to the installation of the limit follower bearing 2 to prevent it from falling out.

[0020] Specifically, the inner wall of the avoidance groove 1c is an arc-shaped groove, and the inner side of the cover plate 4 is an arc-shaped edge that matches the arc-shaped groove, which can play a shielding role. In addition, the outer side of the cover plate 4 is provided with a sensor sheet 4a to facilitate the detection of the moving position of the guide rail.

[0021] like Figure 3 and 4 As shown, a limiting bottom wall 9 is provided at the bottom of the bearing mounting hole 6, and a through hole 10 is provided at the center of the limiting bottom wall 9. The diameter of the through hole 10 is smaller than the outer diameter of the follower bearing 2 and larger than the outer diameter of the connecting shaft 3 to prevent the follower bearing from falling out.

[0022] The above content is a further detailed description of the utility model in combination with specific preferred implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the protection scope of the utility model.

Claims

1. A guide rail connection structure of a PPU manipulator, characterized in that: It includes a connecting block, a follower bearing, a connecting shaft and a cover plate. The connecting block is installed at one end of the guide rail. A bearing mounting hole is provided at one end of the connecting block. The follower bearing is installed in the bearing mounting hole. The front end of the connecting shaft extends into the center of the follower bearing. The rear end is connected to the cycloid wheel of the PPU manipulator. A cover plate is installed in front of the connecting block. The cover plate covers the follower bearing. The follower bearing can roll around the connecting shaft in the bearing mounting hole.

2. According to claim 1, a guide rail connection structure of a PPU manipulator is characterized in that: The connecting block is composed of a front part and a rear part. The front part is provided with screw holes for fixing the mounting guide rail, and the mounting holes are arranged in the rear part.

3. The guide rail connection structure of a PPU manipulator according to claim 2, characterized in that: The front part and the rear part are staggered to form a avoiding groove for installing the cover plate.

4. The guide rail connection structure of a PPU manipulator according to claim 3, characterized in that: The inner wall of the avoidance groove is an arc-shaped groove, and the inner side of the cover plate is an arc edge matched with the arc-shaped groove.

5. A guide rail connection structure of a PPU manipulator according to claim 1 or 4, characterized in that: The outer side of the cover plate is provided with a sensor sheet.

6. The guide rail connection structure of a PPU manipulator according to claim 1, characterized in that: A limiting bottom wall is provided at the bottom of the bearing mounting hole, and a through hole is provided at the center of the limiting bottom wall. The diameter of the through hole is smaller than the outer diameter of the follower bearing and larger than the outer diameter of the connecting shaft.

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